Question: What is the name of the airline that replaces Delta Air Lines?
Paraphrase: What is the title of the carrier that replaces Delta Discuss Lines?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q188920 wdt:P1365 ?obj . ?obj wdt:P31 wd:Q46970 } 
Answer: Northwest Airlines, Comair, Western Airlines, Northeast Airlines, Chicago and Southern Air Lines